Just a quick question: How do you set your blocks, in respect to the starting line? What i've been taught was to set your blocks one foot behind the line, then your power foot 3 feet behind the line, and the other 2 feet. Is that the correct distance? And, do your heels touch the foot pads? I've heard that it's necessary for you to get a good push out of the blocks, but i've only had the balls of my feet on the pad.